Heat-retainer.



I'. H. DANIELS.

HEAT RETAINER.4

ArrLwA'non num JAH. al, 190s.

941,858. Patented Nov. 3o, 1909.

8 SHEETS-SHEET 1. [j O C) ENTOR mmm nu r @mda Ru. cm.

wn'nzssss F. H. DANIBLS.

HEAT RETAINER.

LPrLIuuIox Hmm Jn. 21. 190s.

Patented Nov. 30. 1909.

a sums-sum1.

F. H. DANIBLS.

HEAT RETAINER.

APPLICATION FILED JAN. 21. 1909.

941,858. Patented Nov. 30, 1909.

3 SHEETS-EERST 8 Riu ,12

NVENTOR wlTNzssEs i f N WMISMQMM FRED H. DANIELE, OF WORCESTER,MASSACHUSETTS.

HEAT-RETAINER.

Specification of Letters Patent.

Patented Nov. 30, 1909.

Application led January 21, 1909. Serial No. 473,482.

To all whom it may concern:

Be it known that I, FRED H. DANIELS, of Worcester, Worcester county,Massachusetts, have invented a new and useful Improvement inHeat-Retainers, of which the following is a full, clear, and exactdescription, reference being had to the accompanying drawin s, formingpart of this specification, in whic Figures 1 and 2 are respectivelyhorizontal and vertical longitudinal sections of the preferred form ofheat retainers, and Fig. 3 is a cross section on the line III-III ofFig. l. Fig. 4 is a lan view partially in section of a modified orm ofheat retainer; Fig. 5 isa side elevation thereof, partially in section;Fig. 6` is a sectional view on the line VI-VI of Fig. 4; Figs. 7 and 8are respectively horizontal and vertical sectional views, of anothermodified form of heat retainer; Fig. 9 is a sectional view on the lineIX-IX of Fig. 8.

My invention has relation to heat retainers for use in rolling mills.

The object of the invention is to provide a chamber, in which Hat barsof long lengths, having assed the so-called roughing part of a rollingmill, may be stored for a certain period of time, and heat so appliedand regulated that the bars will have the right unin form temiperaturethroughout their whole len h be ore they or `nishing part of the mill.The heat retainer also provides for a convenient means of disposing ofbars from the roughing mill in case the finishing mill should cobb'le orsuddenly get out of order, and which, Without the retainer, would haveto be run out on the floor and become scrap. The retainer may be of anysuitable design depending upon the fuel used and the maximum length othe billets adopted.

The precise nature of my invention will be best understood by referenceto the accompanying drawings, which will now be described, it beingpremised, however, that various changes can be made in the details ofconstruction and arrangement, by those skilled in the art, withoutdeparting from my invention, as deiined in the appended claims.

In the drawings, the letter B designates the heat retainer, which, asshown in Figs. 1,

'2 and 3, preferably has a number of troughl shaped channels 2 made upof tire brick and are provided with passages are passed into the nextchannels to permit the free circulation of gases around the channels.These channels are arran ed one above the other, so that a number oflats may be resting in the heat retainer B at the same time. I haveshown in these fi ures four of these trough-shaped channels, ut anynumber desired may be used. The lower layer of bricks rest onwater-cooled pipes, L1, thus providing ample structural strength withminimum obstruction for the hot gases. The retainer has openings 5 inthe sides thereof for theedmission of the gas from the burners, whichpasses up and around the bars in the channels 2, and then out throughthe iues (5. At each end of the retainer B are movable feed rolls 7 and8 which are movable bodily up and down for feeding in and withdrawingiiats or bars from the channels 2. These movable feed rolls have feedtables 9 and 10 attached thereto and are swung up or down by anysuitable means. It is obvious that where onl one channel Q is required,the rolls 7 an 8 and tables 9 and l() need not be movable. At the endsof the retainer B are openings 1l and 12 through which suitable grippingtongs or other tools may be iuserted to move the hot bars.

In the modification shown in Figs. 4, 5 and 6, I have shown a retainerin which the feed rolls 35 can be stationary. The flats X are deliveredfrom the roughing mill, to the heat retainer B through one end and sidethereof by means of the feed rolls 35. The fiats are fed into the heatretainer one on top of the other, two to four high. The opening from theheat retainer to the finishing mill is at the other end and sidethereof. The pile of flats is pushed from one side of the heat retainerto the other side, by means of power operated plungers 36, and are fedto the finishing mill over the stationary feed roll '38. The plungers 36can be operated by hydraulic cylinders or any other available means.

In the modification shown in Figs. 7, 8 and 9, the flats X are fed int-oone end of the heat retainer B, by the stationary feed rolls 35, and arefed to the finishing mill from the other end thereof, by means of theroll 38. The flats are delivered to the heat retainer one on top ofanother, from the roughing mill. The bottom piece is pushed out throughthe delivery end of the retainer by means of a ram 37, the engaging endof 3 between the l the ram is provided with a projection 39 whose upperend is slightly below the upper edge of the bottom flat. The deliveryend of the retainer is provided with a guard 40, whose lower edge isslightly above the upper edge of the bottom llat. rl `hereby, insuringthc engagement of only one liat by the ram, and by means of the guard,preventing the drawing of the second flat by frictional contact. Theheat in the retainer is not sutil ciently high. to cause the slabs tostick together. The retainer may be tired with oil, gas, coal or anyother suitable fuel.

From the foregoing description of my ap paratus, it will be seen that myheat retainer is used in con'unction with a mill for rolling flats inthe ollowing manner. The billet is first elongated by passing it througha roughing mill, from which the flats or other shapes are passed ontothe movable feed rollers 7. The flats are fed in rotation by means ofthe feed rollers into the various channels 2 in the heat retainer B, andare withdrawn likewise in rotation, by means of the rollers S, fromwhich they are fed to the finishing rolls. The advantages of myinvention result from the provision of a heat retainer to receive theHats after they pass from the roughing rolls, and before they pass tothe finishing rolls, whereby heat can be so applied that the bars orflats will have the proper and uniform temperature throughout theirlength, when fed to the finislung mill. Also in providing a heatretainer in which a series of Hats can be stored between the roughingand finishing mills, thereby providing a convenient means for disposingof flats from the roughing mill if the finishing mill should get out oforder, and also providing storage space from which the finishing millcan be supplied with flats if the roughing mill should be shut down fora short period.

I claim l. A heat retainer for metal shapes, comprising a furnace, asupport of refractory material to receive the shapes one above anotherin the same vertical plane, means to feed the shapes to the support, andmeans to withdraw the shapes from the support, substantially asdescribed.

2. A heat retainer for metal shapes comprising a furnace, a support ofrefractory material to receive the shapes one above another, openingsthrough the sides of one of the furnace walls at the ends thereof foraccess to said shapes, means to feed the shapes to the support, andmeans to withdraw the shapes from the support; substantially asdescribed.

3. A heat 'retainer for metal shapes, comprisin a furnace, a pluralityof longitudina sup orts of refractory material in different orizontallanes extending through the furnace, adjustable means for feeding theshapes successively to one end of the supports, and adjustable means forsuc` cessively withdrawing the shapes from the other end of thesupports; substantially as described.

l. A heat retainer for metal shapes, cornprising a furnace, a pluralityof longitudinal supports of refractory material extending through thefurnace, openings through the sides of one of the furnace walls at theends thereof for access to said Hats, means for feeding the shapessuccessively to one end of the supports, and means for successivelywithdrawing the shapes from the other end of the supports, substantiallyas described.

5. A heat retainer for metal sha es, comprising a furnace, a plurality otrough shaped longitudinal supports one above another of refractorymaterial extending through the furnace, means for feeding the shapessuccessively to'one end of the supports, and means for successivelywithdrawing the shapes from the other end of the supports; substantiallyas described.

6. A heat retainer for metal shapes, comprising a furnace, a pluralityof longitudinal supports one above the other of refractory materialextending through the furnace, a water-cooled support for the lowersupports, means for feeding the shapes successively to one end of thesupports, and means for successively withdrawing the shapes from theother end of the supports; substantially as described.

T. A heat retainer for metal shapes, comprising a furnace, a pluralityof longitudinal supports one above the other of refractory materialextending through the furnace, a water-cooled support for the lowersupports, circulating passages between the supports, means for feedingthe shapes successively to one end of the supports, and means forsuccessively withdrawing the shapes from the other end of the supports;substantially as described.

8. A heat retainer for metal shapes, comprising a furnace having aplurality of parallel supportshmeans on said supports for uiding theshapes, and feeding and withdrawing mechanism for feeding the shapes toand withdrawing them from any one of said supports; substantially as described.

9. A heat retainer for metal shapes, comprising a furnace having aplurality of parallel supporting guides one above the other, andvertically adjustable feeding and withdrawing mechanism for feeding theshapes to and withdrawin them from any of said guides; substantial y asdescribed.

l0. A heat retainer for metal shapes, comprising a furnace having aplurality of parallel su porting guides one above the other, circu atingpassages between the suporting guides, and vertically adjusting cedingand withdrawing mechanism for feeding the shapes to and withdrawing themfrom any one of said guides; substantially as described.

l1. A heat retainer for metal shapes, coinprising a furnace, a supportto receive the shapes one above another, means to feed the shapessuccessively to the furnace, and means to successively Withdraw theshapes therefrom; substantially as described.

12. A heat retainer for metal shapes, coinprising a furnace, a supportto receive the shapes in different horizontal planes, a rcceiving,ropening at one end of the furnace and a delivery opening at the otherend thereof; substantially as described.

13. A heat retainer for metal shapes, comprising a furnace, a support toreceive the shapes in different horizontal planes, a receiving opening,rat one end of the furnace, a delivery opening at the other end, means tofeed the shapes successively to the furnace, and means to successivelyWithdraw the shapes therefrom; substantially as described.

ll. A heat retainer for metal shapes, comprising a furnace, a support toreceive the shapes one above another, a receiving opening at one end ofthe furnace, a delivery opening at the other end, means to feed theshapes successively to the furnace one above another, and means tosuccessively WithdrawT the shapes therefrom', substantially asdescribed.

15. A heatretainer for metal shapes, comprising a furnace havingr aplurality of parallel supports, one above another, means for guidingc),lthe shapes on said supports, and feeding and withdrawing mechanism forfeeding the shapes to and withdrawing them from any one of saidsupports; substantially as described.

In testimony whereof, l have hereunto set my hand.

FRED Il. DANIELS.

Witnesses DANIEL N. BATES, WM. A. BACON.

